How is a graph not like a manifold?

A Ayzenberg, M Masuda, G Solomadin - arXiv preprint arXiv:2203.10641, 2022 - arxiv.org
For an equivariantly formal action of a compact torus $ T $ on a smooth manifold $ X $ with
isolated fixed points we investigate the global homological properties of the graded poset …

The foundations of -manifolds

VM Buchstaber, S Terzic - arXiv preprint arXiv:1803.05766, 2018 - arxiv.org
In the focus of our paper is a system of axioms that serves as a basis for introducing
structural data for $(2n, k) $-manifolds $ M^{2n} $, where $ M^{2n} $ is a smooth, compact …

Orbit spaces of equivariantly formal torus actions of complexity one

A Ayzenberg, M Masuda - Transformation Groups, 2023 - Springer
Let a compact torus T= T n-1 act on an orientable smooth compact manifold X= X 2 n
effectively, with nonempty finite set of fixed points, and suppose that stabilizers of all points …

The GKM correspondence in dimension 6

O Goertsches, P Konstantis, L Zoller - arXiv preprint arXiv:2210.01856, 2022 - arxiv.org
It follows from the GKM description of equivariant cohomology that the GKM graph of a GKM
manifold has free equivariant graph cohomology, and satisfies a Poincar\'e duality condition …

Topology of complexity one quotients

Y Karshon, S Tolman - Pacific Journal of Mathematics, 2020 - msp.org
We describe of the topology of the geometric quotients of 2 n-dimensional compact
connected symplectic manifolds with (n− 1)-dimensional torus actions. When the isotropy …

Torus action on quaternionic projective plane and related spaces

A Ayzenberg - Arnold Mathematical Journal, 2021 - Springer
For an effective action of a compact torus T on a smooth compact manifold X with nonempty
finite set of fixed points, the number 1 2\dim X-\dim T 1 2 dim X-dim T is called the complexity …

Equivariantly formal 2-torus actions of complexity one

V Gorchakov - arXiv preprint arXiv:2304.00936, 2023 - arxiv.org
In this paper we study a specific class of actions of a $2 $-torus $\mathbb {Z} _2^ k $ on
manifolds, namely, the actions of complexity one in general position. We describe the orbit …

Toric topology of the Grassmannian of planes in and the del Pezzo surface of degree

H Süß - arXiv preprint arXiv:1904.13301, 2019 - arxiv.org
arXiv:1904.13301v3 [math.AG] 20 Oct 2019 Page 1 arXiv:1904.13301v3 [math.AG] 20 Oct 2019
TORIC TOPOLOGY OF THE GRASSMANNIAN OF PLANES IN C5 AND THE DEL PEZZO …

Torus actions of complexity one in non-general position

A Ayzenberg, V Cherepanov - Osaka Journal of Mathematics, 2021 - projecteuclid.org
Let the compact torus $ T^{n-1} $ act on a smooth compact manifold $ X^{2n} $ effectively
with nonempty finite set of fixed points. We pose the question: what can be said about the …

Toric topology of the complex Grassmann manifolds

VM Buchstaber, S Terzic - arXiv preprint arXiv:1802.06449, 2018 - arxiv.org
The family of the complex Grassmann manifolds $ G_ {n, k} $ with a canonical action of the
torus $ T^ n=\mathbb {T}^{n} $ and the analogue of the moment map $\mu: G_ {n, k}\to\Delta …